Natural light. Two coats with no top coat.
Sally Hansen Chrome Nail Makeup in Black Pearl is slightly darker than silver and definitely not chrome. This polish applies a bit streaky and dries pretty quickly. It smells strongly of chemicals and death. It might work for stamping, but it's not anything I'd ever use for a full manicure.
Black Pearl is not even a little reflective and has very little shine. There was obvious shrinkage minutes after I applied, and it started chipping within a half hour. Huge disappointment.